Solution all part I give ?????? (d) Assume that a k-bit non-uniform quantiser with μ-law companding is used, where μ = 230, and k takes theminimum value calculated in Question (b). What binary code would be used for an input voltage of 0.13 V? At thereceiver, what voltage will be produced when this binary code is converted back to an analog value?",The binary code is(your answer should contain only 1 and/or 0, no spaces between adjacentThe voltage isV.(e) Assume that an error correction code with a code rate of 1/4 is employed, and the modulator uses 16-level signalling.Determine the minimum bandwidth required to transmit the signal.Enter your answer here:kHz(f) Assume that the minimum sampling rate is adopted, 10-bit uniform quantiser is used, the code rate is 1/4, and themodulator uses 64-level signalling. What is the channel bandwidth required for transmitting the binary sequence if araised cosine pulse shape with a rolloff factor of 0.5 is used?Enter your answer here:kHz(g) Assume that a raised cosine pulse shape with a rolloff factor of 0.15 is used by the modulator. What is the bandwidthefficiency?Enter your answer here:digits)

It is defined as the group of symbols is called as a code. The digital data is represented, stored…

minimum value calculated in Question (b). What binary code would be used for an input voltage of 0.13 V? At the receiver, what voltage will be produced when this binary code is converted back to an analog value?", The binary code is (your answer should contain only 1 and/or 0, no spaces between adjacent The voltage is V. (e) Assume that an error correction code with a code rate of 1/4 is employed, and the modulator uses 16-level signalli Determine the minimum bandwidth required to transmit the signal. Enter your answer here: kHz (f) Assume that the minimum sampling rate is adopted, 10-bit uniform quantiser is used, the code rate is 1/4, and the modulator uses 64-level signalling. What is the channel bandwidth required for transmitting the binary sequence if a raised cosine pulse shape with a rolloff factor of 0.5 is used? Enter your answer here: kHz (g) Assume that a raised cosine pulse shape with a rolloff factor of 0.15 is used by the modulator. What is the bandwi efficiency? Enter your answer here: digits)

minimum value calculated in Question (b). What binary code would be used for an input voltage of 0.13 V? At the receiver, what voltage will be produced when this binary code is converted back to an analog value?", The binary code is (your answer should contain only 1 and/or 0, no spaces between adjacent The voltage is V. (e) Assume that an error correction code with a code rate of 1/4 is employed, and the modulator uses 16-level signalli Determine the minimum bandwidth required to transmit the signal. Enter your answer here: kHz (f) Assume that the minimum sampling rate is adopted, 10-bit uniform quantiser is used, the code rate is 1/4, and the modulator uses 64-level signalling. What is the channel bandwidth required for transmitting the binary sequence if a raised cosine pulse shape with a rolloff factor of 0.5 is used? Enter your answer here: kHz (g) Assume that a raised cosine pulse shape with a rolloff factor of 0.15 is used by the modulator. What is the bandwi efficiency? Enter your answer here: digits)

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Alice and Bob use the Diffie-Hellman key exchange technique with a common prime q=41and a primitive root α=2 . a) If Alice has private key XA =3,what is Alice’s public key? b) If Bob has private key XB = 7 ,what is Bob’s public key? c) What is the shared secret key?
The original USB cable is famous for people having to try it one way, and then the other, and then back to the first before it actually goes in. When we are talking about affordances and understanding affordances, this is an example of what? 1) A Perceptible Affordance O 2) A False Affordance O 3) Correct Rejection 4) A Hidden Affordance
2 Questions 2.1 Q1 For this question, every encryption scheme satisfies complete correctness. Security is for a single message. 2.1.1 A Let h1, h2 be negligible functions (that are never equal to zero). Prove or disprove: 1. 1 is negligible as well. 2. h1 · h2 is negligible as well. 2.1.2 В We will define a variation of OTP with a key length k = k||k2 where |k1| = |k2| and M = C = {0,1}10, K = 0, 120. The encryption function : Enc(k = k1||k2, m) = m k1 e k2 Complete the decryption algorithm. Prove that the scheme satisfies per- fect correctness and perfect secrecy. 2.1.3 We will define a variation of OTP with M = {0, 1}10, C = {0, 1}1', K = 0,110 Where the encryption algorithm is defined as: { (me k, 1) (т,0) if k ¢ {0lº, 1º} Enc(k, m) otherwise 2 Complete the decryption algorithm. Specify for which e the scheme sat- isfies e statistical security. Prove it is the correct e.
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Alice and Bob want to use Diffie-Hellman Key Establishment to share a key and they have agreed to use the prime number p=97 as their modulus. They have to choose their g from the following list of numbers, none which are unfortunately primitive roots: 6, 9, 18Sort these numbers in the order of suitability, putting the most suitable on the left. Select one: a. 18, 6, 9 b. 9, 18, 6 c. 18, 9, 6 d. 6, 18, 9 e. 9, 6, 18
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ODA a "ll ZAIN IQ Z Lec5 Bool... 14 Digital Systems Mustafa Al-Hashimi EX| Prove the relation is true : x y + xy = x y + x y SOL\ Right hand side (RHS):- x y +xy = x y.xy DeMorgan's Theorem = = = (x +y) (x+y) Rule 9: x = x = (x+y) (x+y) Factoring (distributive law) = xx + xy + y x + yy Rule 8: xx = 0, y y= 0 = x y + y x Therefore the relation is true Leſt hand side (LHS):- x y + xy = xy. x y Factoring (distributive law) DeMorgan's Theorem = (x + y) (x + y) Rule 9: x = x = (x+y) (x + y) Factoring (distributive law) = xx + x y + y x + yy Rule 8: xx = 0, y y= 0 = x y + y x Therefore the relation is true HW 1- Implement (R = A O B) by using only NAND gates that two input, apply DeMorgan's theorems 15